I really liked to difficulty curve this game had!  Starts off being not-so-difficult/easy-to-learn, but by the time you reach the 3rd level it really shoots up and begins testing your skills.  And of course, the graphics and audio were spot on.

My only complaint is that the 3rd boss felt pretty easy compared to the 2nd.  The 2nd boss's fire attack was pretty tricky to dodge, but the 3rd boss...  Well, the 1st boss already gave me the reflexes I needed to dodge the stomp attack.  And once I figured out the boss's weakness, the rock-throwing attack meant nothing to me.

Buuuut, that's just 1 little complaint.  All in all, I still enjoyed it from start to finish!